I see the problem! Your friend is in Germany/Austria/Switzerland (given the "Deutsch" in her language) and had a look on Instagram at someone called "Lisa". It seems that Lisa has just given birth to 3 kittens ( not human babies, but kittens, meaning little cats!) Your friend's comment suggests that she wishes to also have a cat. If you'd like to comment, you might say something like: "Ooh, das ist super! Herzlichen Glückwunsch zu deiner neuen Mami ! Ich bin sicher, die drei sind gleich so süß wie jede Katze."